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  • Bug hunters earned $1,038,250 for 58 unique 0-days at Pwn2Own Toronto 2023

Bug hunters earned $1,038,250 for 58 unique 0-days at Pwn2Own Toronto 2023

Pierluigi Paganini October 28, 2023

The Pwn2Own Toronto 2023 hacking competition is over, bug hunters earned $1,038,500 for 58 zero-day exploits.

The Pwn2Own Toronto 2023 hacking competition is over, the organizers awarded $1,038,250 for 58 unique 0-days. The Team Viettel (@vcslab) won the Master of Pwn with $180K and 30 points.

The vulnerabilities exploited by the experts have been disclosed to the vendors, the ZDI gives them 90 days to address these flaws.

That's a wrap on #Pwn2Own Toronto 2023! We awarded $1,038,250 for 58 unique 0-days during the event. Congratulations to Team Viettel (@vcslab) for winning Master of Pwn with $180K and 30 points. We'll see you at Pwn2Own Automotive in Tokyo next January. pic.twitter.com/CPKPTyMeIv

— Zero Day Initiative (@thezdi) October 27, 2023

The Viettel team received the greatest rewards of the last day, the researchers executed a heap-based buffer overflow and a stack-based buffer overflow against the TP-Link Omada Gigabit Router and the Canon imageCLASS MF753Cdw for the SOHO Smashup. The team earned $50,000 and 10 Master of Pwn points.

The researchers from Claroty executed a 4-bug chain against the TP-Link Omada Gigabit Router and Synology BC500 for the SOHO Smashup. However, one of the vulnerabilities they exploited was previously known (BUG Collision), for this reason, they earned $40,750 and 8.25 Master of Pwn points.

The STEALIEN group executed a stack-based buffer overflow attack against the Wyze Cam v3 resulting in a root shell. They earned $15,000 and 3 Master of Pwn Points.

The Team Viettel also earned $10,000 and 2 Master of Pwn points to execute a stack-based buffer overflow attack leading to RCE against the Lexmark CX331adwe.

Rafal Goryl demonstrated a 2-bug chain to hack the Wyze Cam v3 and gain a root shell. He earned $15,000 and 3 Master of Pwn Points.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, Pwn2Own Toronto 2023)


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    recent articles

    U.S. CISA urges FCEB agencies to fix two Microsoft SharePoint flaws immediately and added them to its Known Exploited Vulnerabilities catalog

    Hacking / July 23, 2025

    Sophos fixed two critical Sophos Firewall vulnerabilities

    Security / July 23, 2025

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    Cyber Crime / July 23, 2025

    Microsoft linked attacks on SharePoint flaws to China-nexus actors

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